diff --git a/f9/src/app.rs b/f9/src/app.rs
index 853911d..9e02478 100644
--- a/f9/src/app.rs
+++ b/f9/src/app.rs
@@ -14,10 +14,11 @@ pub trait UserApp {
 
 #[derive(SharedFromSelf)]
 pub struct App {
+    _self_wp: Weak::<RefCell::<Self>>,
     zone_id: i32,
     node_id: i32,
     instance_id: i32,
-    _self_wp: Weak::<RefCell::<Self>>,
+    user_app: Option<Rc::<RefCell::<dyn UserApp>>>,
 }
 
 impl App {
@@ -35,6 +36,7 @@ impl App {
                             zone_id: 0,
                             node_id: 0,
                             instance_id: 0,
+                            user_app: None,
                             _self_wp: Default::default(),
                         }
                     )));
@@ -46,11 +48,14 @@ impl App {
         }
     }
 
-    pub fn init(&mut self) {
+    pub fn init(&mut self, user_app: Rc::<RefCell::<dyn UserApp>>) {
+        self.user_app = Some(user_app);
         crate::Timer::instance().borrow_mut().init();
+        self.user_app.as_ref().unwrap().borrow_mut().init();
     }
 
     pub fn uninit(&mut self) {
+        self.user_app.as_ref().unwrap().borrow_mut().uninit();
         crate::Timer::instance().borrow_mut().uninit();
     }
 
@@ -62,7 +67,7 @@ impl App {
     }
 
     pub fn get_pkg_name(&self) -> String {
-        return "".to_string();
+        return self.user_app.as_ref().unwrap().borrow().get_pkg_name();
     }
 
     pub fn new_uuid(&self) -> i64 {
@@ -85,4 +90,16 @@ impl App {
         return false;
     }
 
+    pub fn get_now_second(&self) -> i64 {
+        return 0;
+    }
+
+    pub fn get_now_millis(&self) -> i64 {
+        return 0;
+    }
+
+    pub fn get_time_offset(&self) -> i64 {
+        return 0;
+    }
+
 }